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GSW Headquarters Berlin | 2000 | Membrane | Germany

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General information
Location address Berlin
Location country Germany
Year of construction 2000
Name of the client/building owner GSW Gemeinnützige Siedlungs- und Wohnungsbaugesellschaft mbH, Berlin
Function of building Office buildings & congress centres
Degree of enclosure Open structure
Climatic zone Temperate - cold winters and mild summers
Number of layers double-layer
Short description of the project The membrane canopy is built on top of the roof of the high-rise building.
The convection in the western double facade of the building creates a negative pressure which can pull fresh air through the building. When windows on the two facades are opened, fresh air flows from east to west. Due to control flaps at the top and bottom of the solar flue this air flow is more or less independent from outside conditions and enables air exchange rates which are comparable to mechanical systems.
The shape of the membrane canopy reinforces the Venturi effect.
The engineers investigated the thermal and ventilation performance of the building using CFD (computational fluid dynamics) analyses. These programmes established the air flows so that the ventilation openings could be dimensioned, and predicted the range of room temperatures so that, taking the thermal mass into account, the solar shading could be designed. In addition, the way in which the solar flue would function could be simulated. Thus, the application of CFD analyses enabled the engineers to predict with a high degree of certainty the way in which the seemingly simple, yet otherwise unpredictable principles of cross ventilation would work.
Misc. project details
Duration of use
Temporary or permanent structure Permanent
Material of the cover
Cable-net/Textile/Hybrid/Foil Fabric
Material Fabric/Foil Polyester
Material coating PVC
Main dimensions and form
Form of a single element Anticlastic
Involved companies
Architects sauerbruch hutton architects
Editor
Editor Marijke Mollaert
 
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